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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA - Knowledgebase Articles > CBQoS counter data unavailable when polling Cisco Catalyst 3850

CBQoS counter data unavailable when polling Cisco Catalyst 3850

Created by Daniel Polaske, last modified by Caroline Juszczak on Aug 31, 2018

Views: 1,032 Votes: 1 Revisions: 15

Updated

Overview

You may find that your Cisco Catalyst 3850 seems to have its CBQoS settings properly configured, and that NTA displays a recent Last Received CBQoS date/time, however the Average and Last Polled Interface Utilization shows 0.00% and the counter data is completely missing. This results in a number of blank charts and graphs with "No Data Available" displayed.  Despite this, the Class Name fields for CBQoS Post-Policy and Pre-Policy Class Maps are populated.

 

 

Environment

  • WS-C3850-48P

    Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.06.03E RELEASE SOFTWARE (fc3)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2015 by Cisco Systems, Inc.
    Compiled Wed 26-Aug-15

  • All Orion NTA environments

Cause 

Hardware limitation Cisco confirmed and it's only tied to this model. The Class-map will always show 0 bytes for the OID:

cbQosCMPrePolicyByte64 1.3.6.1.4.1.9.9.166.1.15.1.1.6 Count of bytes befor applying QoS policies for each class

Resolution

  1. Open a ticket with Cisco to track this issue.

 

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